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A total of 1,400 people from 60 countries responded to the online survey. The subjects were asked specifically about the use of three drugs: methylphenidate (Ritalin), which is used to treat attention deficit hyperactivity disorder (ADHD), but is considered on college campuses as a "study aid"; modafinil (Provigil), which is prescribed for sleep disorders, but is used by some to fight general fatigue or jet lag; beta-blockers, cardiovascular drugs prescribed for heart failure and high blood pressure, which are also known for their anti-anxiety effect.


“这是世界最好的有关结合现代医学和古老的东方医学智慧养生之道。 ”